A1141 - Allegro

A1141 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches

A1140/41/42/43 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches Package LH, 3-pin SOT 3 1. VCC 2. No connection 3. GND NC 1 2 Package UA, 3-pin SIP 1. VCC 2. GND 3. GND PTCT 1 2 3 ABSOLUTE MAXIMUM RATINGS Supply Voltage, VCC ............ 28 V Reverse-Supply Voltage, VRCC ......... –.

Features

on-chip transient protection, and a Zener clamp to protect against overvoltage conditions on the supply line. The output currents of the A1141 and A1143 switch HIGH in the presence of a south polarity magnetic field of sufficient strength; and switch LOW otherwise, including when there is no significant magnetic field present. The A1140 and A1142 have inverted output current levels: switching LOW in the presence of a south polarity magnetic field of sufficient strength, and HIGH otherwise. The devices also differ in their specified LOW current supply levels. All family members are offered in two pack.